They never really messed with my PH much actually,pretty neutral'ish imo.they may lower it ever so slightly...I used the A and B,white widow,myco madness.I never got a chance to use the naturals.Ive heard they are decent.heck kyle kush man has used them some and still does use the honey ES.or did as of last year anywho.so Im guessin once you figure out the naturals(which shouldnt be tough)it'll lend to some really decnt more natural grows imo.And if you go with the naturals line I bet they wouldn t mess with your PH much either.but dont really know.just get some earth juice n you'll have a natural style of growing in no time.which Am will not lend to.at all.organic is a marketing.i wouldnt personally touch their organics line.but thats me.naturals are a bit different,same as all natural gorwing vs. organic.true organic rather.both lend to excellent meds.Ive been reading a lot on Kyle Kushmans style of veganic/Natural style of growing too.pretty damn nice.if I were gonna do a redo,Id start with the naturals from Humboldt,and go from there.sounds like a good choice imho too.stay with the naturals line if you do decide to use them over AN.best of luck growing bro.:Sharing One:I use honey ES too.